Composition of gum chicle, rubber, and an aqueous colloid



Patented Nov. 13, 1928. I UNITED STATES PATENT OFFICE.

ARTHUR RIDDLE, or 'rannron, NEW JnnsaY, assmnon :ro UNITED raonucrs 003-K romrron oramnmca, A CORPORATION or DELAWARE.-

CQMROSITION OIHGUM CHICLE, RUBBER, AND AN AQUEOUS COLLOID.

N Drawing. -Application filed May 22, 1926. Serial No 111,027.

My invention relates to a composition of tained in the finished product,which is somematter having adhesive properties and coma times desirable.When, however, it is not deprising gumchicle and rubber dispersed insir-ed thatthe oil shall be in the finished an aqueous collo d. product,a volatile organic solvent may be An object of my inventionis to producea used to dissolve the chicle, and this mixture 60 composition useful(in the artshaVing the dispersed inthe aqueous colloid. The $01-Waterproof qualities of. rubber-but prefervent may then be removed byevaporation ably not having the stretchiness or-elasticity while stillin colloidal form or during the thereof which is undesirable ord'sadvanprocess of'drying the finished article.

tageous in many instances. I As an example of one form of my new as Mynew composition is especially adaptcompositon, I take'.80 paltS byweight of able for use as a seal for metallic, glass or gum chicle anddissolve it in 60 parts of linother containers, the adhes'veness of the.seed oil with the aid of heat. I also take composition enablin it toadhere 'to metalparts by weight of casein and dissolve the 15 1'0, glassor other hke surfaces with great; same in a solution of 150' parts ofwater and 7 tenacity. My, composition is also useful for 7 parts of acasein solvent, for example, 2 coating and impregnating fabrics, naperand parts of borax and5 parts of aqua ammonia. the like and also as abinder for fibrous ma- The d ssolving of the casein may be assistedterials and comminuted'siibstances such as by heat. The oil solution ofchicle may be 24) leather, cork and wood. By the ad ition of thenslo'wlyadded tothe caseinsolution under suitable filling materials thecomposi ion may agitation. Care should be observed that the be made of aplastic or moldable nature and dispersion ofthe gum chicle inthe aqueousof utility in the lastic and molding arts. colloid is complete forotherwise an inversion The composition w1ll also be found adaptable ofphase may take place and form a stringy '2 for advantageous use innumerous other inortacky mass. The composition at this stage so dustriesand arts. 1 should now be more or less viscous or plastic.

The gum chicle may be used either in its 100 parts by weight of rubberare now added crude or refined states asmay also therubto theoompositlon; the rubber may be in ber by dissolving it in an organicsolvent or the form ofl rubber latex which has been dispersing it inaqueous colloidal form :or treated with ammonia to make 1t alkaline. asit may be used in its origInal form as con- The com ositldn is thensubjected tda vigortained in latex, preferably preserved with an ousstirring so that the parts may become alkali. The initial physicalcondition of the thoroughly commm led and the rubber and rubber'is notof great importance as long as gum chicle uniform y dispersedthroughout. V

the rubber is in some form of aqueous dis- It will be understood thatdis ersed rubber persion in the roduct, as its essential utili in otherforms, crude, refine vulcanlzed, resides in the e asticity,comparatively smal reclaimed or uncured, may be employed mwhich itimparts to the-composition. Among stead of as found in rubber latex. thecolloids which may be used in the com-e- The foregoing composition hasbeen found 40 position are casein starches, especially thin ad i bluited for use as a sealing comvU5 flowing or modified starches, solublesilicates u d f metal, gla aper and other con- 1 and resinates, soaps,insoluble vstearatesand tainers, no vulcanizing or'accelerating agentcolloidal clays. being essential. When, however, the com- In carryingout my invention, I first disposition is to be'used for coatin orimpregperse the gum chicle in water or an aqueous nating articles suchas paper, fi res, fabrics,

colloid; this may be done by any suitable textiles and the'like or as abinder for .commeans as by grinding, rolling or sprayllig minutedmaterials such as cork, leather, and h gum chlcle in wa er r an q e udbl; sawdust, vulcanizing and accelerating agents loid, with orwithout'heat, or the m chicle may be added; among the vulcanizing agents50 maybe first dissolved in an oil so vent such whi h ay b d are ulphur,colloidal as linseed oil, heat preferably being resent. l h l bl l himor sulphides or It will be understood that other oils w ich are othersulphur compounds. The sulphur chicle solvents or organic solvents maybe chloride cure or other cold cure may also be also used. When heavy orsemi-drying or. employed. Accelerating agents may be ad- I, oxidizingoils areused they will be convantageously employed in some instances; no

accelerating agents which I have found very adaptable are formaldehydeor compounds capable of forming formaldehyde in situ.

If the product is to be used in the plastic or molding arts, fillers,such as clay, zmc oxides and lamp black, among others, may be added tothe composition, the degree of plasticity or moldability being governedby the amount of water which may be added. If a composition more or lessbrittle is deired the proportions of thecolloid and filling materialsmay be increased and a vulcanizing agent may be added when it isdesirable that the composition be vulcaniged. If a moreor less soft andinelastic composition is desired the proportions of the gum chicle, oiland the various softening agents may be increased. If it is desirablethat the composition be of a somewhat high degree of elasticity, thenthe proportions of the rubber content may be increased. Furthermore, theorder of mixing or adding the ingredients may be varied; for instance,the rubber ma be dispersed at the same time with the chic e or it may bedispersed in the aqueous colloid before the addition of the chicle.

While I have herein described a mode of carrying out my invention andits utility in some of the arts, it is to be understood that theinvention is not limited to those arts or to the particular modedescribed or to, the particular ingredients and? proportions mentioned.

Having thus described my invention, I claim and desire to protect byLetters Patent of the United States:

1. A composition of matter having adhesive properties comprising anaqueous dispersion of gum chicle, rubber and a hydrophilic colloid.

2. A composition of matter having adhesive properties comprising anaqueous dispersion. of gum chicle, an oil solvent for said gum chicle,rubber, and a hydrophilic colloid.

3. A composition of matter having. adhehesive properties comprising anaqueous dispersion of gum chicle, linseed oil, rubber, and a hydrophiliccolloid.

4. A composition of matter having adhesive properties comprising anaqueous dispersion of gum chicle, a hydrophilic, colloid and rubber inacolloidal state.

5. A composition of matter having adhesive properties comprising anaqueous dispersion of gum chicle. casein' and rubber I latex.

6. A composition of matter having ad-- hesive properties comprising anaqueous dispersion of gum chicle,, rubber latex, linseed oil, andcasein. v

7. A composition of matter having'adhe-. sive properties comprising anaqueous dispersion of chicle a hydrophilic colloidal substance, an oilsolvent for said chicle, rubber in dispersed phase.

8.. A composition of'matter having adhesive properties comprising anaqueous dispersion of chicle a hydrophilic colloidal substance, an oilsolvent for said chicle, rubber in dispersed phase, and an alkali.

In witness whereof, I have hereunto set my hand-this 21st day of May,1926.

ARTHUR BIDDLE.

